Top 11AI made for AI

The 11 cheapest customer support · knowledge management

The cheapest provider in the Top 11 The 11 Best Knowledge Base Software (2026) is Guru at $5/mo, followed by Confluence.

Why this answer

Sorted by published starting price, lowest first. We use each provider's lowest documented price band; where pricing is undisclosed, the entry falls to the bottom of the list.

Showing the top 11 of 11+ screened. Methodology at /methodology.

  1. #1Guru(rank #4 in The 11 Best Knowledge Base Software (2026))

    $5/mo+

    Pushes trusted internal knowledge directly into your team's existing workflows and tools.

    Full Guru review · Compare: Guru vs Confluence · Alternatives

  2. #2Confluence(rank #5 in The 11 Best Knowledge Base Software (2026))

    $5.75/mo+

    The industry standard for internal technical documentation, with deep Jira integration.

    Full Confluence review · Alternatives

  3. #3Notion(rank #6 in The 11 Best Knowledge Base Software (2026))

    $8/mo+

    An incredibly flexible all-in-one tool with a best-in-class editor for building custom internal wikis.

    Full Notion review · Alternatives

  4. #4Slab(rank #7 in The 11 Best Knowledge Base Software (2026))

    $8/mo+

    A clean, fast, and focused alternative to Confluence for modern internal knowledge bases.

    Full Slab review · Alternatives

  5. #5GitBook(rank #11 in The 11 Best Knowledge Base Software (2026))

    $8/mo+

    A specialized KB for creating beautiful, developer-friendly technical documentation and API references.

    Full GitBook review · Alternatives

  6. #6Freshdesk(rank #9 in The 11 Best Knowledge Base Software (2026))

    $15/mo+

    A capable KB within a feature-rich, affordable, all-in-one customer support suite.

    Full Freshdesk review · Alternatives

  7. #7Help Scout Docs(rank #8 in The 11 Best Knowledge Base Software (2026))

    $20/mo+

    A simple, clean, and effective KB that's perfectly integrated with its user-friendly help desk.

    Full Help Scout Docs review · Alternatives

  8. #8Intercom Articles(rank #3 in The 11 Best Knowledge Base Software (2026))

    $39/mo+

    Delivers proactive, contextual help inside your app through its best-in-class messenger.

    Full Intercom Articles review · Alternatives

  9. #9Zendesk Guide(rank #2 in The 11 Best Knowledge Base Software (2026))

    $55/mo+

    Unbeatable integration with Zendesk Support for ticket deflection and AI-powered agent suggestions.

    Full Zendesk Guide review · Alternatives

  10. #10Helpjuice(rank #10 in The 11 Best Knowledge Base Software (2026))

    $120/mo+

    A standalone KB with a hyper-focus on delivering a powerful search experience and deep analytics.

    Full Helpjuice review · Alternatives

  11. #11Document360(rank #1 in The 11 Best Knowledge Base Software (2026))

    $149/mo+

    A purpose-built KB platform that excels in content management, analytics, and customization for serious documentation needs.

    Full Document360 review · Alternatives

Methodology: /methodology · No paid placement ever · Verified .